Twisting apparatus.



Patented Mar. 13, 1917.

8 mw y Av H WQRRQQQQARV/ W m I. 4 V 3 3* 4 v I m. m m we m z 3 k I H V 2 S 2 7 2 i"? 8 m B m r a l 2 mm mm 3 mm 8 Inventor. Charles W. Hubbard CHARLES W. HUBBARD, 0F WESTON, MASSACHUSETTS.

TWISTING APPARATUS.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application filed November 4, 1916. Serial No. 129,613.

I together a plurality of individual strands thereby making a larger cord or strand, and the object of the invention is to provide an improved machine for this purpose in which each individual strand is first twisted be fore it is twisted together with the other strand and in which two twists are put into the cord for each revolution of the flier.

In order to give an understanding of my invention, I have illustrated in the drawings some selected embodiments thereof which will now be described, after which the novel features will be pointed out in the appended claims.

Fi re 1 of the drawings is a vertical sectiona view through an apparatus embodying my invention;

Fig. 2 is a fragmentary view showing a modified form of' the invention.

The device herein illustrated comprises a rotatable frame or flier, a tubular stationary support situated axially of the frame or flier, a plurality of yarn receivers carried by said stationary support and each arranged to rotate about its axis, means whereby the yarn end or strand from each yarn receiver may be delivered into one end of the stationary support and the combined ends or strands may be delivered from the other end of the tubular support to a yarn guide at one end of the flier and may be then delivered from the flier axially thereof at the other end, and means for rotating-the flier about its axis and also rotating the yarn receivers about their axes whereby each individual strand will be given a twist due to the rotation of the yarn receivers, and the combined strands or ends will be twisted together with one twist at each endof the flier for each revolution thereof.

Referring first to Fig. 1, the flier comprises the two end frames 1 and 2 which are connected by one or more tie members 3, one at least of these tiemembers being hollow. This flier is provided at one end with a supporting shaft or trunnion 1 which is journaled in a suitable bearing 5, and at the other end is provided with a pivot shaft or trunnion 6 which is journaled in a suitable bearing 7. Situated axially of the flier is a tubular supporting member 8, one end of which is received in a recess 90 in the trunnion member 6, and the other end of which fits over the end of the supporting shaft 4. Fast. on this tubular member 8 are two heads 9 and 10 in which are rotatably supported a plurality of yarn receivers. These yarn receivers are herein shown as in the form of cans or receptacles 11, each adapted to receive a yarn mass 12. These receptacles have supporting shafts 13 secured to their lower ends, which shafts are journaled in the head 9, and at their upper end said receptacles have covers 14 removably secured thereto which carry pivotal shafts or'trunnions 15 that are journaled in the upper head 10. These trunnions 15 are hollow so as to permit the yarn end 16 from each yarn mass 12 to be delivered therethrough. The yarn mass 12 will preferably be wound in layers extending transversely to the axis of rotation so that the yarn can be readily drawn ofl from the end of the yarn mass. The tubular supporting member 8 is provided at its upper end with yarn-guiding apertures 17 through which the yarn ends or strands 16 are led from the hollow trunnions 15. These yarn strands pass down through .the tubular supporting member 8 and are delivered through a thread passage 18 at the lower end of the flier. From this thread passage '18 the strands are taken through one of the flier arms 3, and then through a thread passage 19 formed in the pivotal shaft or trunnion 6 at the upper end of the flier. Means are provided for rotating the flier about its axis, and each individual yarn receiver about its axis, while maintaining the tubular support 8 stationary. The rotation of each yarn receiver about its axis will result in twisting each individual strand of yarn between the yarn mass and the thread-guiding aperture 17, and the rotation of the flier about its axis results in twisting together'the several strands both at the bottom of the flier where the strands pass into the passage 18 and at the top of the flier where the combined strands pass out from the thread passage 19. The resultant cord Any suitable means may be employed for rotating the flier and the yarn receivers and for holding the tubular support 8 stationary.

In Fig. 1 the means for rotating the flier is in the form of a drivin pulley 20 fast on the shaft 4 to which the 'er is secured. The head 1 of the flier has a shaft 21 journaled therein eccentrically thereof and to which is secured an epicycle gear 22 that meshes with a stationary gear 23 situated axially of the This stationary gear is shown as fixed on a bracket 24 secured to the bearing 5. The shaft .21 is also provided with a second epicycle gear 25 of the same-size as the gear 22, and this gear 25 meshes with a gear 26 fast on the tubular support 8, the gear 26 being of the same size as the stationary gear 23. With this epicyclic train of gearing, which includes the stationary gear 23, the gear 26 and consequently the tubular support 8 will be held from rotation as the flier rotates.

For rotating the yarn receivers 11 about their axes, I have provided in Fig. 1 a construction involving a gear'28 rigid with the pivotal shafts 13 of each yarn receiver, said gear 28 meshing with a gear 27 fast on a sleeve 29 that is loosely mounted on the tubular support 8. Thesleeve 29 has a gear 30 fast thereto which meshes with a gear 31 fast on. the shaft 21. The gear 31 is larger than the gear 25, and as a result, the sleeve 29 will be rotated relative to the tubular support 8, the rotation'of" the sleeve 29 operating to rotate the yarn receivers 11 about their axes. By this means, the rotation of 'the pulley 20 will operate to rotate the flier about its axis to hold the tubular support 8 stationary and also to rotate the yarn receivers 11 about their axes. Each individual strand will, therefore, be twisted as it is delivered to the thread passage 17 of the stationary support, and the yarn ends will all be twisted together once for each revolution of-the flier at some point between the upper and lower end of the tubular support, ,the partially-twisted strands being led through the-thread passage 18, through the flier arm 3,'and through the thread passage 19' where they are delivered to any suitable winding mechanism. The rotation of the flier will put another twist for each flier turn into the cord or strand 61 as it is delivered from the thread passage 19, and by this means two twists are put into the finished product for each rotation of the flier. This enables a twisted cord or strand to be produced with twice the rapidity that is possible where a 'gle twist only is put in for each turn of In Fig. 2 I have illustrated a slightly dif ferent embodiment of the invention which involves two driving members, one for ro- .strand or yarn end before it is twisted with other yarn ends. In the device shown in Fig. 2, the yarn receivers 11 are rotatably 'mounted in yokes or heads, the lower one 9 only of which is illustrated, that are fixed to the stationary tubular support 8, all as shown in Fig. 1.

The flier comprises the two heads, the lower one 1 of which only is shown, which are connected by the flier arms or tie rods 3.

The flier has fast thereto a driving pulley 32 by which it is rotated. The flier is journaled at its lower end upon a stationary shaft 33 which has fast thereto a stationary gear 34 that meshes with an epicycle gear 35 fast on a shaft 36 that is journaled in across-piece 37 secured to the flier arms. This shaft 36 has a second epicycle gear 38 thereon which meshes with a gear 39 fast on the tubular supporting member This epicyclic train of gearing will result in holding the member ,8 stationary as the flier rotates. about their axes by means of a driving pulley 40 which is mounted on a sleeve 41 that in turn is loosely mounted on'the stationary shaft 3 and extends axially through the lower head 1 of the flier. This sleeve 41 has a gear 42 thereon which meshes with an epicycle gear 43 on a shaft 44 journaledin the cross-piece or yoke 37 The upper end of the shaft 44 has an epicycle gear 45 thereon which meshes with a gear 46 fast on a sleeve 47 which is journaled on the tubular support 8, and this sleeve 47 has a gear 49 which meshes with gears 50 secured to the trunnions or pivot shafts 13 of' the yarn receivers 11. With the last-named train of gearing it will be seen that the driving pulley 40 will operate to rotate the yarn receivers 11 about their axes, and since the driving means for rotating theyarn receivers is separate'from that by which the flier is rotated, it will be possible to vary the relative speed of rotation of the fller and yarn receiver thereby providing for putting in more or less twist in the indi-' vidual yarn ends 16 before they are twisted together. In the construction shown in Fig. 2, the lower end of the tubular support 8 is journaled in the yoke 37, and said yoke is also provided with a bearing 51 for the.

upper end of the stationary shaft 33. Said yoke 37 is provided with a thread passage 52 communicating with the lower end of the support 8 and the strands or yarn ends to be twisted together are delivered through this thread passage 52 from the lower end of the support 8. From the passage 52, the

The yarn receivers 11 are rotated partially-twisted strand 61 is led into one of with a flier, of a tubular support situated centrally thereof, a plurality of yarn holders rotatably mounted on said tubular support and adapted to deliver yarn into said support at one end thereof, means to rotate the flier and to hold the tubular support stationary, said flier having a thread passage at one end thereof which communicates with the other end of said tubular support and also having an axial thread passage at the other end thereof whereby the individual yarn ends will be twisted together once at each end of the flier for each revolution thereof.

In a twisting machine, the combination with a flier, of a tubular support situated centrally thereof, a plurality of yarn holders rotatably mounted on said tubular support and adapted to deliver yarn into said support at oneend thereof, means to rotate the flier and to hold the tubular support stationary, said flier having a thread passage at one end thereof which communicates with the other end of said tubular support and also having an axial thread passage at the other end thereof, and meansfor rotating the individual yarn holders whereby each yarn end will be twisted before it is delivered to the tubular support and the. yarn ends will be twisted together once at each end of the flier for each revolution thereof.

3. In a twisting apparatus, the combination with a flier having an axial thread passage at each end, of a tubular support situated axially of the flier, two yokes or heads secured to said tubular support, a plurality of yarn receivers rotatably mounted in said yokes or heads,'and each having an axial yarn-delivering passage through which yarn is delivered to one end of the tubular support, the combined yarn ends being delivered from the tubular support through the thread passages in the two ends of the flier successively, and means to rotate the flier about its axis and the yarn holders about their axes while maintaining the tubular support stationary.

In testimony whereof, I have signed my name to this specification.

CHARLES W. HUBBARD. 

